Can you check the permissions on your .mozilla-thunderbird folder and the sub-folders in your home directory? You can do this with the following commad:
ls -l ~/.mozilla-thunderbird/
Everything should be owned by you.
Can you check the permissions on your .mozilla- thunderbird folder and the sub-folders in your home directory? You can do this with the following commad:
ls -l ~/.mozilla- thunderbird/
Everything should be owned by you.